Feank o



(No Model.)

F. O. BADGER.

' SPRING BED BOTTOM.

jatented Feb. '7, 1888.

N, PETERS. FlIein-Lllhogmpher. Washingwn. n.c,

UNITED STATES PATENT A OFFIC FRANK, 0. BADGER, or BROOKLYN, -nnw YOBK.

SPRING BED-BOTTOM,

SPECIFICATION forming part of Letters Patent 1 \To. 377,419, dated February 1888.

Application filed January 31, 1887. Serial No. 225,985. (No modelll woven-wire strips. being shown therein; Fig

2, a plan viewof a portion of one end of the spring-bottom, on an enlarged scale, illustrating the manner of securing the ends of the woven and straight" wires; Fig. 3, a similar view,on an enlarged scale,illnstrating a modification in the mode of fastening the ends of the woven wires. Fig. 4 illustrates another modification in the manner of finishing the ends of the woven wires; Fig. 5, an enlarged view of aportion of the wire hinges connecting H the woven-wire strips, and Fig. 6 a sectional view of theend plate shown in Fig. 2.

My invention relates to the construction in novel form of a metallic spring bed-bottom which will admit of ready attachment to or detachment from a suitable supporting-frame and of being folded up in small compass for transportation.

It has for its object to produce at areduced cost a neat clean durable elasticbed bottom which will retain its form and will not sag unthe structure by clasps hinged together and adapted to be attached to a supporting-frame by means of spiral or helical springs, all as is hereinafter fully described in detail.

In the accompanying drawings, AA is the customary supporting-frame for thebed-bottom. 7

B B are comparatively narrow ela'sticstrips formed of coiled wires interwoven in the usual ing the strips are severally interlaced at each manner from end to end. The wires composend thereof with perforated plates 0 0, Fig. 2,

or with wire frames D (see Fig. 3) as an equivalent for the plates, and the free ends of the are covered and secured and a neat finish imwires projecting beyond each plate or frame j S parted thereto by means of a heading, E, p'referablyof lead or other soft metal or alloy cast or impressed thereon. Before fixing the beading E upon these free ends they may be twisted l.

cured byolamping it, the sectionsiof beading are cast with sockets or lateral recesses an,

adapted to receive the ends of" the wires, as

inserted into said sockets or recesses the beading is closed and clamped thereon by pressure, or by the use of a hammer.

shown in Fig. 6, and when the wires have been i If preferred, the beading E may ne madev wide enough to overlap the edge of the plate asshown in Fig. 4. I p

The perforated clasp-plates O' 0, serving as clasps for the ends of the woven-wire strips'B B, are hinged togetherby means of wire loops W W, the hinged connection being formed by bending the ends of the claspplates over the wire of-the loops, as shown in Figs. 1 and 2, and the hinge-loops W W are extended atv either end and twisted at one'to form eyes S, (see Fig.2,) to engage the spiral springs G G, by which the hinged strips are attached to theframe A A in the customary manner, and at the other into a corresponding loop, S', to en-' gage the ends of the straight straining-wires JJ of thebed-bottomy- The straightstrainingwires J J are stret ched' parallel with the woven-wire strips B B, as. shown in Fig. 1, from the inner eye,-S, of each hinge-loop W at one end to the eye S of. the

corresponding loop attheoppositeend of the Ioo the outermost wires in the strip and whose ends are preferably hooked into the claspplate 0 at each end of the strip.

The straining-wires J J are made to serve as pintles for a series of hinges connecting the adjacent strips B Bintermediate their ends. These hinges may consist, as is customary, of strap-plates L L, arranged in pairs,and whose inner ends are formed with interlocking tongues, which are bent around the pintlewire J, and whose outer ends are bent around the reenforcing marginal wires K K on each side. Preferably, however, the hinges are formed oftwo coiled wires, M M, run together upon the pintle-wire J, and which are each bent outwardly at regular intervals in loops N N, (see Fig.4,) to project each from the same point in opposite directions and embrace the proximate re-enforciug wires K K, these wires K being simply carried through the project ing loops simultaneously with their insertion through the coils of the lateral wire of the strip.

As an equivalent for the perforated claspplates 0 G, hereinbefore described, hinged by wire loops E E, and through whose perforations the ends of the woven wires of thestrips B B are interlaced,frames D, of wire, (see Fig. 3,) may be employed and hinged together by plates R. In such case the ends of the woven wires of the strip are interlaced with the bars of the frame D, as shown in Fig. 3, and the straining -wires J are. hooked into central holes in the plates R, the ends of the menforcing wires K K and of the spiral support ing-springs G G being likewise hooked into apertures in the same plate. (See Fig. 3.)

In constructing the bed-bottom the wovenwire strips B B are first formed and the ends of the wires interlaced in the clasp-plates O C or equivalent clasp-frames, D D, and secured and finished by means of the outer beading, E, applied thereto and secured thereon in manneras described. The elaspplates O or D at each end of a suitable number of strips are then hinged together, and the strainingwires J J, having the hinge-wires M M run thereon, are hooked into the hingeloops WV \V or equivalent hingeplates, R R. The re enforcing wires K K are then passed through the lateral coiled wire of each strip and through the loops N of the hinge-wires M M, and made fast at each end to the end plates,C or It, as described. Spiral springs G are now made fast to the hinge-loops \V or plates R, whereby the bed-bottom may be secured to the frame A, as required, or it may, by reason of its hinge-connections between the several strips B B, be folded up into very small eompass for transportation independent of the frame.

It is evident that the beading E may be coextensive in length with the width of the woven-wire strips, and may be applied to such a strip independently of the terminal plates or frames, and used to secure the ends of woven wires which are notinterlaeed with such plates divisionstrips between openings in said frame or plate, and that the ends of the wires are concealed and tied by means of a finishing strip of soft metal cast or compressed upon said ends, so that the latter shall be embedded in the finishingstrip.

I am aware, also, that it is not new to bind the edges of wire'cloth for screens and other purposes with metallic strips bent over said edge and made fast by rivets.

Ielaini as my invention-- 1. The combination, in a spring bed-bottom, of a series of hinged woven-wire strips, clasps securing and uniting the ends of the woven wires in the strips, longitudinal strainingwires interposed between the strips, and hinged connections for the clasps to which the straining-wires are secured, substantially in the manner and for the purpose herein set forth.

2. The combination, with the wires in a woven strip for a bed-bottom, of a terminal plate pierced with two or more parallel rows of holes, which in the one roware opposite the spaces in the other, the ends of each pair of the intertwisted wires of the strip being parted and led separately from opposite sides of the plate through two adjacent holes in the first row,then brought together from opposite sides through a single hole in the next row to be again parted, as required, substantially in the manner and for the purpose herein set forth.

8. The eombination,with parallel longitudinal strips of woven wire, an interposed longitudinal straight wire, and hinged clasps at the ends of the strips, of one or moreintcrmediate hinges formed upon saidstraight wire as a pintle and made to couple the two adjacent strips, substantially in the manner and for the purpose herein set forth.

at. The combination, in a hinge for wovenwirc bed-bottoms, with a single straight wire serving as a pintle, of two spirally-coiled wires run closely together loosely upon the straight wire and each made to project therefrom in radial arms or loops to serve as the leaves of the hinge, substantially in the manner and for the purpose herein set forth.

In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

FRANK O. BADGER.

Witnesses A. N. J nsnnna,

A. D. VINTON.

IlO 

